Article
Chemistry, Inorganic & Nuclear
Lucas Wickemeyer, Jan Schwabedissen, Pia C. Trapp, Beate Neumann, Hans-Georg Stammler, Norbert W. Mitzel
Summary: A series of ortho-phenylene-bridged phosphorus-silicon Lewis pairs were synthesized, and their interactions were investigated experimentally and theoretically. The results showed stabilizing interactions between the acidic and basic units, which were mediated by electronic interactions through the ring rather than direct acid-base interactions. Spectroscopic and theoretical investigations confirmed the absence of direct interactions between silicon and phosphorus.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Chiwon Hwang, Yeosan Lee, Minjae Kim, Younggyu Seo, Seung Hwan Cho
Summary: The development of new approaches to installing diverse carbon fragments to a nitrogen atom has attracted considerable attention in chemical science. One powerful and straightforward approach is to insert a transformable sp(3)-carbon unit onto a nitrogen atom for modular diversification.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Thomas Delouche, Ghizlene Taifour, Marie Cordier, Thierry Roisnel, Denis Tondelier, Payal Manzhi, Bernard Geffroy, Boris Le Guennic, Denis Jacquemin, Muriel Hissler, Pierre-Antoine Bouit
Summary: A straightforward synthesis of Si-containing PAHs is reported, with investigation into the impact of pi-extension and exocyclic modifications on optical and redox properties using a joint experimental/theoretical approach. Preliminary opto-electronic results indicate that these heteroatom-containing PAHs may serve as promising building blocks for organic electronics, as demonstrated by the preparation of electroluminescent devices utilizing the solid-state luminescence of these derivatives.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Yue Yang, Liuzhong Yuan, Jiaxiang Guo, Kaiqi Ye, Yu Liu, Chuandong Dou
Summary: In this study, we designed organoborane TADF emitters using double B <- N bridged bipyridine (BNBP) as an electron-accepting unit. By varying the electron donor groups, interesting TADF properties were obtained, and unexpected aggregation-induced emission characteristics were observed for this organoborane molecule.
Article
Chemistry, Organic
Robindo Chatterjee, Bappaditya Goswami, Ambika Devi, Swati Rani, Manas Khatua, Subhas Samanta
Summary: Unprecedented metal-free complete o-phenylene bridged N-4-cyclophanes (M1 and M2) have been synthesized via sequential palladium-catalyzed Buchwald-Hartwig N-arylation reactions. These cyclophanes, considered as aromatic analogues of aliphatic group-spaced N-4-macrocycles, have been fully characterized using physicochemical techniques and X-ray structure determination. Their redox, spectral, and photophysical properties, determined by cyclic voltammetry, UV-vis spectro-electrochemistry, fluorescence spectral studies, and DFT calculations, indicate their potential applications.
Article
Biochemistry & Molecular Biology
Chengfei Liu, Muqiong Li, Pengxiang Li, Wenzhuo Chen, Huixin Li, Li Fan, Wei Tian
Summary: The study utilized platinum-containing supramolecular drug self-delivery nanomicelles for drug monitoring through computed tomography imaging and real-time treatment, achieving efficient synergistic combination chemotherapy with strong tumor inhibition effects and good safety. Such a supramolecular drug self-delivery strategy with monitored functions opens up new potential opportunities for application in synergistic combination chemotherapy.
Article
Chemistry, Organic
Robindo Chatterjee, Bappaditya Goswami, Ambika Devi, Swati Rani, Manas Khatua, Subhas Samanta
Summary: Unprecedented metal-free complete o-phenylenebridged N (4)-cyclophanes (M1 and M2) were synthesized via sequential palladium-catalyzed Buchwald-Hartwig N-arylation reactions. These cyclophanes can be considered as aromatic analogues of aliphatic group-spaced N (4)-macrocycles. Physicochemical characterization techniques and single crystal X-ray structure determination were used to fully characterize them. Their redox and spectral properties were characterized by cyclic voltammetry, UV-vis spectro-electrochemistry, fluorescence spectral studies, and DFT calculations. These studies revealed rich redox, spectral, and photophysical properties, making both M1 and M2 potential candidates for various applications.
Article
Chemistry, Multidisciplinary
Shuzhi Hu, Tianyu Li, Mingbao Huang, Jinghua Huang, Wenjin Li, Liwen Wang, Zhenqiang Chen, Zhiyong Fu, Xianfeng Li, Zhenxing Liang
Summary: The introduction of a rotating phenyl ring to create a switchable conjugation system has proven successful in enhancing battery stability and capacity. By switching the conjugation off in the oxidized state and on in the reduced state, the battery demonstrates high energy efficiency and cycling stability.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Joaquin M. Alzola, Nikolai A. Tcyrulnikov, Paige J. Brown, Tobin J. Marks, Michael R. Wasielewski, Ryan M. Young
Summary: Research shows that PDI acceptors linked at the headland positions yield higher power conversion efficiencies in photovoltaic cells, with their photophysical properties and structural dynamics playing key roles in this process.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Avijit Maiti, Fangyuan Zhang, Ivo Krummenacher, Moulika Bhattacharyya, Sakshi Mehta, Michael Moos, Christoph Lambert, Bernd Engels, Abhishake Mondal, Holger Braunschweig, Prince Ravat, Anukul Jana
Summary: This study presents the synthesis and characterization of anionic boron- and carbon-based Kekule diradicaloids connected by a p-phenylene bridge, which exhibit triplet state properties at room temperature. Additionally, the formation of an isolable diamino(4-diarylboryl-phenyl)methyl radical was observed during the synthesis process.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Applied
Belarani Ojha, Kanhu Charan Behera, Mangalampalli Ravikanth
Summary: The first examples of m-/p-phenylene bridged bis(3-pyrrolyl BODIPY)s were synthesized and can be used as novel ligands for metal coordination chemistry. They have enhanced molar absorptivity compared to the monomer, 3-pyrrolyl BODIPY. The m-phenylene bridged bis (3-pyrrolyl BODIPY) emits strongly at -600 nm with a quantum yield of 0.34 whereas p-phenylene bridged bis (3-pyrrolyl BODIPY) emits relatively weakly in the same region with a quantum yield of 0.21.
Article
Polymer Science
Yohei Adachi, Keisuke Kondo, Xiaodong Yin, Frieder Jakle, Joji Ohshita
Summary: Incorporating non-conventional elements into pi-conjugated systems allows for control of electronic structures. In this study, electron-deficient tricoordinate boron units were combined with electron-rich dithienogermole units to create a hybrid conjugated macrocycle with m-phenylene linkers. The fluorescence spectra of the element-hybrid macrocycle exhibited solvatochromism, and the addition of fluoride intensified the fluorescence. This mechanism was confirmed through fluorescence spectroscopy and TDDFT calculations.
Article
Chemistry, Inorganic & Nuclear
Fabian Schaefer, Jan-Hendrik Lamm, Beate Neumann, Hans-Georg Stammler, Norbert W. Mitzel
Summary: Connecting various organic spacer functions via silicon core units leads to organosilanes suitable as backbones for poly-Lewis acids, resulting in rigid and flexible PLAs. Solid-state structures and host-guest experiments demonstrate the characteristics of these PLAs, showing their ability to complex with neutral guest molecules.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ken Albrecht, Maki Taguchi, Takamasa Tsukamoto, Tatsuya Moriai, Nozomi Yoshida, Kimihisa Yamamoto
Summary: Synthesizing metal clusters with a specific number of atoms is challenging, but the dendrimer templated method provides a solution. A new tailor-made phenylazomethine dendrimer (DPA) was designed and successfully synthesized, which can be used to synthesize a variety of metal clusters with desired atomicity.
Article
Chemistry, Analytical
Rong Sheng Li, Jiahui Liu, Yuan Yan, Chuanyang Su, Tiancheng Lai, Yunwen Liao, Yuan Fang Li, Na Li, Cheng Zhi Huang
Summary: The study introduces an aggregation-enhanced energy transfer strategy to overcome obstacles in effective energy transfer, achieving enhanced FRET efficiency.
ANALYTICAL CHEMISTRY
(2021)
